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Diffstat (limited to 'include/asm-x86/ipi.h')
-rw-r--r--include/asm-x86/ipi.h16
1 files changed, 11 insertions, 5 deletions
diff --git a/include/asm-x86/ipi.h b/include/asm-x86/ipi.h
index c1b226797518..30a692cfaff8 100644
--- a/include/asm-x86/ipi.h
+++ b/include/asm-x86/ipi.h
@@ -49,6 +49,12 @@ static inline int __prepare_ICR2(unsigned int mask)
49 return SET_APIC_DEST_FIELD(mask); 49 return SET_APIC_DEST_FIELD(mask);
50} 50}
51 51
52static inline void __xapic_wait_icr_idle(void)
53{
54 while (native_apic_mem_read(APIC_ICR) & APIC_ICR_BUSY)
55 cpu_relax();
56}
57
52static inline void __send_IPI_shortcut(unsigned int shortcut, int vector, 58static inline void __send_IPI_shortcut(unsigned int shortcut, int vector,
53 unsigned int dest) 59 unsigned int dest)
54{ 60{
@@ -64,7 +70,7 @@ static inline void __send_IPI_shortcut(unsigned int shortcut, int vector,
64 /* 70 /*
65 * Wait for idle. 71 * Wait for idle.
66 */ 72 */
67 apic_wait_icr_idle(); 73 __xapic_wait_icr_idle();
68 74
69 /* 75 /*
70 * No need to touch the target chip field 76 * No need to touch the target chip field
@@ -74,7 +80,7 @@ static inline void __send_IPI_shortcut(unsigned int shortcut, int vector,
74 /* 80 /*
75 * Send the IPI. The write to APIC_ICR fires this off. 81 * Send the IPI. The write to APIC_ICR fires this off.
76 */ 82 */
77 apic_write(APIC_ICR, cfg); 83 native_apic_mem_write(APIC_ICR, cfg);
78} 84}
79 85
80/* 86/*
@@ -92,13 +98,13 @@ static inline void __send_IPI_dest_field(unsigned int mask, int vector,
92 if (unlikely(vector == NMI_VECTOR)) 98 if (unlikely(vector == NMI_VECTOR))
93 safe_apic_wait_icr_idle(); 99 safe_apic_wait_icr_idle();
94 else 100 else
95 apic_wait_icr_idle(); 101 __xapic_wait_icr_idle();
96 102
97 /* 103 /*
98 * prepare target chip field 104 * prepare target chip field
99 */ 105 */
100 cfg = __prepare_ICR2(mask); 106 cfg = __prepare_ICR2(mask);
101 apic_write(APIC_ICR2, cfg); 107 native_apic_mem_write(APIC_ICR2, cfg);
102 108
103 /* 109 /*
104 * program the ICR 110 * program the ICR
@@ -108,7 +114,7 @@ static inline void __send_IPI_dest_field(unsigned int mask, int vector,
108 /* 114 /*
109 * Send the IPI. The write to APIC_ICR fires this off. 115 * Send the IPI. The write to APIC_ICR fires this off.
110 */ 116 */
111 apic_write(APIC_ICR, cfg); 117 native_apic_mem_write(APIC_ICR, cfg);
112} 118}
113 119
114static inline void send_IPI_mask_sequence(cpumask_t mask, int vector) 120static inline void send_IPI_mask_sequence(cpumask_t mask, int vector)